关于胃内容物中脂肪酶活性的来源。
On the source of lipase activity in gastric contents.
作者信息
Bläckberg L, Hernell O, Fredrikzon B, Akerblom H K
出版信息
Acta Paediatr Scand. 1977 Jul;66(4):473-7. doi: 10.1111/j.1651-2227.1977.tb07929.x.
--A convenient assay procedure for determination of the activity of pharyngeal lipase (gastric content lipase), using a long chain triglyceride as substrate, is described. Lipase activity in extracts of rat tongue, salivas collected from the upper esophageal pouch from two human newborns with congenital esophageal atresia and in gastric content obtained from an infant with pyloric stenosis were studied. Optimal lipase activities of the three enzyme sources were found in the same pH-range. During hydrolysis the composition of the products formed were also similar. The data presented indicate that at least some of the lipase activity which is responsible for lipolysis in the stomach of the newborn, originates in pregastric tissues.
描述了一种使用长链甘油三酯作为底物来测定咽脂肪酶（胃内容物脂肪酶）活性的简便测定方法。研究了大鼠舌提取物、从两名患有先天性食管闭锁的人类新生儿的食管上盲袋收集的唾液以及从一名患有幽门狭窄的婴儿获得的胃内容物中的脂肪酶活性。在相同的pH范围内发现了这三种酶源的最佳脂肪酶活性。在水解过程中形成的产物组成也相似。所呈现的数据表明，至少部分负责新生儿胃中脂肪分解的脂肪酶活性源自胃前组织。
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